The radius of a sphere is 3 cm. Find, in terms of π, its volume.
MATHEMATICS
WAEC 2023
The radius of a sphere is 3 cm. Find, in terms of π, its volume.
- A. \(30\pi cm^3\)
- B. \(108\pi cm^3\)
- C. \(27\pi cm^3\)
- D. \(36\pi cm^3\)
Correct Answer: D. \(36\pi cm^3\)
Explanation
Given that radius = 3cm.
volume of sphere = \(\frac{4}{3}\times\pi\times r^3\)
= \(\frac{4}{3}\times\pi\times 3^3\)
= \(\frac{4}{3}\times\pi\times 27\)
= \(4\times\pi\times9\)
= \(36\pi cm^3\)
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